A night with the wife and her strap-on.
My wife has a debilitating physical problem so I have to time it for her good days. Usually I can tell if she is feeling good enough to fuck me so I prep myself and ask her if she thinks she can. When she can, it is great. We have perfected the right height and angle for her to attack my ass and she seems to hang in there for quite a while.
We have many positions but the best for her is missionary, her standing, Me on my back with legs over my head at the edge of the bed or massage table. She stands at my ass, holding my legs up and drives me crazy. This gives her great access to my dick and balls for playing with them. And for me to play with her tits and caresses. I have the hardest and longest climaxes in missionary position. The angle to my prostate can be if-fie but I have made adjustments to get her on target. I love the doggie position the best for a flat out hard fucking and we have a bench for me to kneel on and her to stand behind me. Her standing works the best for hip action and good ass driving for both positions. She is not a Dom. She fucks me for my pleasure. She gets only the satisfaction of knowing she can satisfy me.
Do yourself a favor. If you plan to or are using a strap-on, Have your mate put on the harness and dong and measure from the floor to the base of the dong. Then get into your position, let's say doggie and have her measure from the floor to your asshole. Think about the angle needed to hit your prostate and figure that into the height. So now figure the difference and that is what you need for a bench, footstool, bed, saw horse dungeon gear, or whatever. This makes it easier for her and much more enjoyable for you. If it is for a group then you need to figure the lowest and provide boosters for the rest. Why do it unless you are getting the most for your fuck. We found that on something more stable than a bed is best. A bed moves around too much and it is hard to make adjustments for angle and stability for good movement. Pick your equipment for good performance, not looks.